Starry flounders (Platichthys stellatus, mean weight 105 ± 14 g, mean total length 20.2 ± 0.7 cm) were exposed to hexavalent chromium concentrations of 0, 5, 10, 20, 40, and 80 mg Cr6 +/L for 96 hours. The half-lethal concentration (LC50) of P. stellatus induced by acute exposure to waterborne hexavalent chromium for 96 hours was found to be 58.84 mg Cr6+/L. In hematological parameters, red blood cell counts (RBCs), hemoglobin and hematocrit were significantly increased (P < 0.05). Major plasma components also changed significantly due to exposure to waterborne hexavalent chromium. Calcium in plasma inorganic components significantly increased, and glucose and cholesterol in plasma organic components also showed significant increases (P < 0.05). Plasma enzyme components such as AST, ALT and ALP were significantly increased (P < 0.05) at high levels of waterborne hexavalent chromium exposure. The results of this study suggest that acute exposure to waterborne hexavalent chromium in P. stellatus affects survival rates, hematological properties and plasma components.

中文翻译：

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对 Starry Billor， Platichthys stellatus 暴露于六价铬的致死浓度 50 % 血液学参数和血浆成分的影响


星状比目鱼（Platichthys stellatus，平均体重 105 ± 14 g，平均总长 20.2 ± 0.7 cm）暴露于浓度为 0、5、10、20、40 和 80 mg Cr6 +/L 的六价铬中 96 小时。急性暴露于水性六价铬 96 小时诱导的 P. stellatus 半数致死浓度 （LC50） 为 58.84 mg Cr6+/L。血液学指标中，红细胞计数 （RBC） 、血红蛋白和血细胞比容显著升高 （P < 0.05）。由于暴露于水性六价铬，主要血浆成分也发生了显著变化。血浆无机成分中的钙含量显著升高，血浆有机成分中的葡萄糖和胆固醇也表现出显著升高（P < 0.05）。在高水平的水性六价铬暴露下，AST、ALT 和 ALP 等血浆酶成分显著增加 （P < 0.05）。这项研究的结果表明，星状假单胞菌急性暴露于水性六价铬会影响存活率、血液学特性和血浆成分。